Pump-operating mechanism.



No. 727,189. PATENTED MAY 5, 1903.

D. J. NYSEWANDER.

PUMP OPERATING MECHANISM.

No, 727,189. PATENTED MAY 5,1903.

D. J. NYSEWANDER. PUMP OPERATING MECHANISM.

APPLICATION FILED AUG. 29, 1902.

N0 MODEL. I 2 SHEETS-SHEET 2.

, Patented May 5, 1903.

PATENT FFICE.

' DAVID J. NYSEWANDER, or TOLEDO, OHIO.

PUMP-OPERATING MECHANISM.

SPECIFICATION forming part of Letters Patent No. 727,189, dated May 5, 1903. Application filed August 29,1902. Serial No. 121,512. (No model.)

To all whom zit may concern.-

Be it known that I, DAVID J. NYSEWANDER, a citizen of the United States, residing at T- ledo, in the county of Lucas and State of Ohio,

have invented certain new and useful Improvements in Pump-Operating Mechanism, of which the following isaspecification.

This invention has relation to pumps of the class chiefly designed to be operated by hand, although applicable to any style or make of pump adapted to be actuated by means of an oscillating handle.

The essential feature of the invention is to reduce the friction to the smallest amount possible and to obtain a maximum movement of pump-rod with a minimum movement of the handle, the parts being arranged so as. to obviate any swaying movement of the pumprod which would tend to cause the bucket or plunger to bind in the barrel and the parts to wear unevenly.

For a full description of the invention and the merits thereof and'also to acquire a knowledge of the details ofconstruction of the means for effecting theresult reference is to be had to the following description and drawings hereto attached.

\Vhile the essential and characteristic features of the invention are susceptible of modification, still the preferred'embodiment of the invention is illustrated in the accompanying drawings, in which.

Figure 1 is a side elevation of a pump-head embodying the invention, an'intermediate portion of the standard being broken away. Fig. 2 is a side view of 'acheelcof the headpiece applied to the standard. Fig. 3 is a front view of the parts shown in Fig. 1, the actuator being in section. Fig. 4 is a top plan view of the parts illustrated in Fig. 1, showing the head-piece in section.

Corresponding and like parts are referred to in the following description'and indicated in all the views of the drawings by the same reference characters. 1

The pump-head com prises a standard 1, forked at its upper end, as shown at -2,"and a head-piece 3, detachably fitted to the fork members 2 of the standard and provided with an opening 4. to guide the rack-bar 5 in its vertical movements. The head-piece 3 is composed of companion parts bolted or otherwise secured together at one end, the re maining portion of the parts being spaced apart to form cheek-pieces 6, between which the toothed actuator 7 at the inner end of the handle 8 operates. Each cheek-piece 6 is provided at its inner end and upon its outer side with a pair ofvertical ribs 9, transversely spaced to receive between them the fork members 2 of the standard 1. The inner edges or sides of the vertical ribs 9 are outwardly converged,. and opposite edges on sides of the fork members 2 are correspondingly inclined, so as to'snugly fit between the ribs 9 andinterlock therewith, so as to prevent relative displacement of the parts 2 and 6 after being assembled. .To prevent vertical displacement of the head-piece 3, a bolt 10 passes through openings in the parts 2 and 6 in coincident relation. The parts 6 come together at their outer ends and are secured by bolts 11, and their innersides are recessed to receive the ends of aroller 12, which supports the rack-bar5 against the outward pressure of the toothed actuator when the pump is in operation. A set-screw 13 is threaded into an opening formed in the outer end of the head-piece, audits inner end is adapted to bear against the roller 12 for adjustment thereof to compensate for wear between the teeth of the parts 5 and 7.

The toothed actuator is approximately of circular form, and. a portion thereof only is toothed, the teeth "14 being rollers adapted. to turn about their respective axis, so as to minimize the friction when the teeth of the parts 5 and 7 are comingi'ntomesh. The toothed actuator is composed of two parts which are adapted to be secured by bolts or fastenings 15. These parts have a peripheral portion of their opposing-sides cut away to receive the roller-teeth la -and admit of the teeth of the rack-bar 5 meshing with said teeth 14. The walls of the cut-away portion are formed with recesses 16 at regular intervals toreceive the ends of the respective rpller-teeth 14, wherebythe latter are maintained in proper position and mounted to turn when coming into engagement withand leaving the teethof the rack-bar 5. The center of each. partis recessed upon itsinner face to receive a series of rollers 17, constituting a roller-bearing for the actuatorupon the mounting or bolt 10.

When the parts of the actuator are secured by the fastenings 15, the several rollers 16 and 17 are held in position against casual displacement and are adapted to be removed when required by separation of the parts of the actuator after loosening the bolts or fastenings 15. The toothed actuator is mounted upon the bolt 10 and is provided with the handle 8, which may be of metal or wood and bolted or otherwise attached to said actuator, preferably by being clamped between extensions thereof.

The rack-bar 5 is adapted to move freely through the outer end of the head-piece 3 and is directed in its vertical movements thereby and prevented from anylateral or oscillatory play, thereby causing the bucket or plunger to move rectilinearly without causing unequal wear of the pump barrel or plunger. The pump-rod 18 is secured to the lower end of the rack-bar 5 by means of a clamp-screw 19 in any convenient way. When the bolt or fastening 10 is removed, the actuator 7 and headpiece 3 may be disconnected from the fork of the standard 1. It will thus be seen that the fastening 10 performs a double functionnamely, a fulcrum for the toothed actuator and securing means for the head-piece. By having the head piece separate from the standard the parts may be more cheaply constructed and replaced in the event of breakage or other cause rendering any one of the parts unserviceable.

Having thus described the invention, what is claimed as new isa 1. In apump-head, and in combination with the standard and vertical reciprocating rackbar, an oscillatory actuator com posed of companion parts, said parts having their inner peripheral portions annularly cut away, the walls of thesaid cu t-away portions being provided at intervals with recesses forming bearings, and roller-teeth located in the cut-away portion of the toothed actuator and having their end portions mounted in the recesses of opposite walls thereof, substantially as set forth.

2.. In a pump-head, the combination with a standard bifurcated to form integral fork members, a head portion laterally projected from said members, and a rack-bar mounted for reciprocal movement within said headpiece, of an actuator composed of separable complementary parts having their inner peripheral portions cut away and having opposite walls of the cut-away portions provided with recesses at intervals thereon, roller-teeth mounted in corresponding depressions and adapted to cooperate with the teeth of the rack-bar, and means for connecting the parts of the actuator, substantially as set forth.

3. In a pump, the combination of a standard com prising spaced parts, a head-piece detachably fitted to the standard-and provided with spaced ribs to embrace opposite sides of the respective parts of the standards, a bolt passed through corresponding openings of the head-piece and standard, a rack-bar mounted for rectilinear movement within said headpiece, and a toothed actuator cooperating with said rack-bar and mounted upon the aforementioned bolt, substantially as described.

4. In a pump, the combination ofa standard comprising spaced members, a bolt supported by means of said members and extended across the space formed between them, a rack-bar, an actuator cooperating with the rack bar and comprising complementary parts havinga peripheral portion and the central portion of each cut away upon its inner face, said actuator being mounted upon the aforementioned bolt, rollers located in the central space formed by the central cut-away portions ofthe parts,and roller-teeth mounted in the walls of the peripheral cut-away portion of said parts, substantially as specified.

5. In a pump-head, a standard having its upper end forked, a head-piece composed of cheek-pieces coming together at one end and provided with spaced ribs at the opposite end to receive the fork members, the opposing sides of the ribs being converged tointerlock with corresponding sides of said fork members, a bolt passed through corresponding openings of the fork members and cheekpieces, a roller confined between the outer ends of said cheek-pieces, means for adjusting said roller, a rack-bar mounted to reciprocate rectilinearly within said head-piece, an actuator mounted upon the aforementioned bolt and comprising complementary parts having a central and peripheral portion cut away, and rollers mounted in the cut-away parts comprising the actuator, substantially as specified.

In testimony whereof I affix my signature in presence of two witnesses.

DAVID J. NYSEWANDER. [LS-1 Witnesses:

I. T. MERRILL, HENRY HOWARD CUSHING. 

